Over the course of about 90 seconds, an encounter between a police officer and a man inside a southern Oregon Carl's Jr. bathroom last month turned deadly, video released Thursday shows.

The Jackson County District Attorney's Office released body camera footage in the Sept. 19 fatal shooting of Matthew Graves, 33, in Eagle Point. District Attorney Beth Heckert announced Wednesday that a county grand jury determined Officer Daniel Cardenas, an Eagle Point officer for two years, was legally justified in shooting Graves. The shooting occurred during a fight in the restroom between Graves, Cardenas and Senior Officer Clarence "C.J." Davis, a 15-year department veteran who arrived as backup to Cardenas.

The body camera worn by Cardenas falls off at one point when all three men are struggling with each other on the bathroom floor. The total video is about 11 minutes and begins after Cardenas tries unsuccessfully to stop Graves from walking away from him near the fast-food restaurant and ends after the shooting with police dragging Graves on the ground back outside to paramedics and Cardenas later being asked what happened by another law enforcement officer.

Cardenas testified to a grand jury that he first spotted Graves while he was driving his patrol car on Oregon 62 around 8:45 p.m. last month and had to brake because Graves stepped into the street against the traffic light, Heckert said Wednesday. Graves went back onto the sidewalk until the officer drove off, then Cardenas said he did a U-turn after looking in his rearview mirror and seeing Graves walk across the street while the light was still green for oncoming traffic.

Cardenas followed Graves to the fast-food restaurant because he intended to talk to Graves about the dangers of jaywalking, Heckert said. He also said he suspected Graves might have had an outstanding arrest warrant or a weapon, the district attorney said.

It was later determined Graves was unarmed and had no active warrants. Graves' father told jurors his son has been diagnosed with schizophrenia and hadn't been taking medication for years.

The officers testified that Cardenas used a Taser on Graves after Graves put his hands on him, that the stun gun had little effect, that Graves punched Davis soon after he got into the bathroom, and that Graves managed to Tase Davis with Cardenas' unholstered Taser. They also said that Davis told Cardenas twice that Graves had a gun and that Cardenas shot Graves twice in the back.

The officers later realized Davis mistook the Taser for a gun. The officers' Tasers and firearms were both black and could have been easily confused in the chaos, Heckert said. Grand jurors suggested officers' Tasers and firearms be different colors, and Police Chief Darin May said Wednesday that it would be something he would look into.

According to the body camera footage, Cardenas asked Graves what he was doing three times before they were both in the Carl's Jr. Graves swore at the officer, told him to leave and called Cardenas worthless.

Graves went into the men's bathroom. Cardenas drew his gun before going into the restroom, ordered Graves twice to show his hands and again asked what he was doing. Graves replied while washing his hands that he was getting food, told Cardenas to shut up.

After Graves finished drying his hands, Cardenas holstered his gun, pulled out a Taser, ordered Graves to the ground and warned he'd be stunned if he didn't comply.

The officer told Graves to get on the ground four times and Graves didn't comply.

Graves tried to walk past the officer and out the door, and Cardenas pushed him back, telling him to back up.

"You touch me again and you're gone," Graves tells Cardenas.

"Touch me again and see what (expletive) happens." Cardenas replies.

Cardenas pushed Graves twice more and shocked Graves with the Taser after Graves pushed him. Graves recoiled while being stunned and Cardenas told him five more times to go to the ground. Graves didn't comply and instead approached the officer.

Davis came into the bathroom at some point and then the view of what occurs is obscured as the fight between the three begins.

In seven seconds, Davis said there was a gun, Cardenas asked Graves if he had a firearm, Davis repeated that there was a gun, but then said it was a Taser, and Cardenas drew his pistol and fired. Cardenas then immediately reported the shooting to emergency dispatchers.

As they waited for help to arrive, both officers yelled at Graves to stay conscious, Cardenas puts a handcuff on one of Graves' wrists and Davis told Cardenas that he didn't know if Graves had grabbed a gun. When Cardenas asked where the gun Davis mentioned earlier was, Davis mentioned the Taser on the ground and said it might've been what he saw.